William collins bukrows



(No Model.)

W. O. BURROWS.

vTHILLv GOUPLING. No. 357,974. Patented Feb. 15, 1887.-

UNITED STATES PATENT OFFICE.

VVILLIAM COLLINS BURROWS, OF STOCKTON, NEV YORK.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 357,974. dated February 15, 1887.

Application filed June 29, 1886.

To all whom/ it may concern:

Be it known that I, WILLIAM CoLLINs BUR- Rows, a citizen of the United States, residing at Stockton, in the county of Chautauqua and State of New York, have invented a newand useful Improvement in Anti-Rattlers for Thill- Couplings, of which the following is a specificat-ion.

My invention relates to an improvement in anti-rattlers for thill-couplings; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claim;

In the drawings, Figure 1 is a side elevation of my invention attached to a thill-coupling. Fig. 2 is a front elevation of the same. Figs. 3 and 4 represent a modified form of my invention. Fig. 5 is a detail view of the bolt shown in Fig. 1.

A represents a portion of the front axle, and B represents the thill-ooupling, having the clip O attached to the'aXle in the usual man ner.

D represents the draft'iron of one of the thills, and E represents the coupling bolt, which passes transversel y through openings made in the outer ends of the arms of the thill` coupling, and through an eye made in the rear ends of the draftiron.

F represents the fiat spring,which is secu red on the depending threaded ends of the clipbolt by means of the clamping-nuts G. The said spring is bent in the form of the letter U when laid hox'izontally, and thelower arm of the said spring is first bent upwardly, as at f, and then outwardlyin a horizontal plane, as atf', thus forming an extended end of the spring, which is arranged below the eye of the draftiron and bears upwardly in the direction of the said draft-iron.

H represents a block, which is provided with a concave groove, h, on its upper side, and thereby adapted to fit against the lower side of the eye of the draftiron. From the lower side of the said block H depends a stud, h', which fits in an opening made in the outer end,

Serial No. 206.632. (Na model.)

of the spring, whereby the said block is attached to the outer end of the spring, and the latter serves to keep the block pressed normally against the under side of the eye of the drai't-iron to prevent the thill-coupling from rattling. 1

The coupling-bolts now commonly einployed frequently work loose in the coupling and become lost, thus detaching the thills from the axle and causing great annoyance, danger, and the expense of replacing the lost couplingbolts with new ones. In order to avoid this objection I propose to adapt the block H to engage with one or both ends of the ooupling bolt, and thus effectually prevent the latter from working loose and becoming lost. Various means may be employed to acoomplish this result, and I show in the accompanying drawings two methods of doing so.

In Figs. 1 and 2, e represents Vertical slots, which are made in one or both ends of the coupling-bolt, and h'l represents Vertical ears, which are formed on the ends (one or both) of the block H and extend upwardly against the outer sides of the arms of the coupling, the said ears being provided in their upper ends with open slots h3, which engage the grooves e of the coupling-bolt, and thus effectually prevent the latter from working lengthwise and becoming disengaged from the thill.

Having thus described my invention, I claim- In a thill-coupling, the combination of the block H, bearing under the eye of the draftiron and having the ear If, provided with the open slot ha, the spring bearing under the said block, and the ooupling-bolt having the grooves e to receive the sides of the slot hi, Whereby the bolt is locked in the said slot, substantially as deseribed.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

WILLIAM COLLINS BURROWS.

Witnesses:

J. E. RANDALL, O. E. WARREN. 

